Bug#1094696: FTBFS on all architectures

[Rafael Laboissière]

* Adrian Bunk <bunk at debian.org> [2025-01-30 14:59]:

> On Thu, Jan 30, 2025 at 11:25:32AM +0100, Stéphane Glondu wrote:
>> Source: plplot
>> Version: 5.15.0+dfsg2-12
>> Severity: serious
>> Tags: ftbfs
>> User: debian-ocaml-maint at lists.debian.org
>> Usertags: ocaml-5.3.0-transition
>>
>> Dear Maintainer,
>>
>> plplot FTBFS on all architectures:
>>
>>   https://buildd.debian.org/status/package.php?p=plplot
>>
>> Note that a binNMU was triggered as part of the OCaml transition, but 
>> the failure seems unrelated to OCaml (rather related to numpy).
>
> Attached is a fix for the initial error.

Thanks, I integrated it into the package: 
https://salsa.debian.org/science-team/plplot/-/blob/master/debian/patches/build-against-numpy-2.patch

> But it fails later with the next error (also numpy related):
>
> ... 
> Generate python results for svg device 
> cd /tmp/plplot-5.15.0+dfsg2/obj-x86_64-linux-gnu/examples && env EXAMPLES_PREFIX=/tmp/plplot-5.15.0+dfsg2/obj-x86_64-linux-gnu/examples SRC_EXAMPLES_PREFIX=/tmp/plplot-5.15.0+dfsg2/examples OUTPUT_DIR=/tmp/plplot-5.15.0+dfsg2/obj-x86_64-linux-gnu/examples/test_examples_output_dir /bin/bash /tmp/plplot-5.15.0+dfsg2/obj-x86_64-linux-gnu/plplot_test/plplot-test.sh --verbose --front-end=python --device=svg 
> Testing front-end python 
> x00 
> x01 
> x02 
> x03 
> x04 
> x05 
> x06 
> x07 
> x08 
> Traceback (most recent call last): 
>  File "/tmp/plplot-5.15.0+dfsg2/obj-x86_64-linux-gnu/examples/python/x08", line 37, in <module> 
>    x08.main(w) 
>    ~~~~~~~~^^^ 
>  File "/tmp/plplot-5.15.0+dfsg2/obj-x86_64-linux-gnu/examples/python/x08.py", line 107, in main 
>    square_root = sqrt(1. - min(1., ((double(i) - x0)/a)**2)) 
>                            ~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
>  File "/usr/lib/python3/dist-packages/numpy/_core/fromnumeric.py", line 3302, in min 
>    return _wrapreduction(a, np.minimum, 'min', axis, None, out, 
>                          keepdims=keepdims, initial=initial, where=where) 
>  File "/usr/lib/python3/dist-packages/numpy/_core/fromnumeric.py", line 86, in _wrapreduction 
>    return ufunc.reduce(obj, axis, dtype, out, **passkwargs) 
>           ~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
> TypeError: 'numpy.float64' object cannot be interpreted as an integer 
> make[5]: *** [examples/CMakeFiles/test_python_svg.dir/build.make:440: 
> examples/test_examples_output_dir/x00p01.svg] Error 1

I fixed the problem with a new patch: 
https://salsa.debian.org/science-team/plplot/-/blob/master/debian/patches/minimum-maximum-numpy2.patch

I prepared the new version 5.15.0+dfsg2-13 of the package.

Despite the fact that dh_numpy3 is called in debian/rules, my local 
run of Lintian yields this error:

E: python3-plplot: missing-dependency-on-numpy-abi

I uploaded the package to unstable, anyway.

Best,

Rafael